Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? Pore diffusion Chemical reaction Ash layer diffusion Film diffusion TRUE ANSWER : ? YOUR ANSWER : ?
The residence time distribution of an ideal CSTR is 1/τ exp (-t/τ) Τ exp (-t/τ) Exp(-t/τ) 1/τ (-t/τ) TRUE ANSWER : ? YOUR ANSWER : ?
The rate of reaction of a/an __________ reaction is not affected by temperature rise. Autocatalytic Zero order Consecutive Photochemical TRUE ANSWER : ? YOUR ANSWER : ?
For a tubular flow reactor with uniform concentration and temperature, the independent variable is Length Diameter Time None of these TRUE ANSWER : ? YOUR ANSWER : ?
Mean residence time is equal to the space time, when All of these The temperature, pressure and the density of reaction mixture remains constant throughout the reactor The feed rate is measured at temperature and pressure in the reactor There is no change in number of moles in gaseous reaction TRUE ANSWER : ? YOUR ANSWER : ?
Non-catalytic fluid-solid reactions are represented by __________ model. Both A and B Neither A and B Continuous reaction Unreacted core TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following fixes the volume of a batch reactor for a particular conversion and production rate? None of these Rate constant Operating conditions (e.g. pressure and temperature) Density of mixture TRUE ANSWER : ? YOUR ANSWER : ?
__________ catalytic reaction is involved in the thermal cracking of gas oil. Homogeneous Heterogeneous Heterogeneous non Homogeneous non TRUE ANSWER : ? YOUR ANSWER : ?
An example of autothermal reactor operation is Ethylene oxidation Benzene oxidation Sulphur dioxide oxidation Ammonia synthesis TRUE ANSWER : ? YOUR ANSWER : ?